Gusts in 3D?

WilliamH · February 20, 2021, 13:59

Hi everyone,

I managed to define a gust and solve my flow in 2D but when I tried to apply it to 3D it didn't work. The output tells me:
Running simulation with a Wind Gust.

WARNING - Wind Gust capability is only verified for 2 dimensional simulations.

Error in "virtual CNumerics::ResidualType<> CSourceWindGust::ComputeResidual(const CConfig*)":
-------------------------------------------------------------------------
You should only be in the gust source term in two dimensions

Is it not possible to apply gusts to a 3D flow?

Thanks,
William

bigfootedrockmidget · February 21, 2021, 06:29

I just had a look and the gust terms are only implemented for 2D. I do not know anything about gust modeling, but it does not look very complicated to add the 3D terms to the current model. If you know how these terms look in 3D, You could add the missing terms for the z-direction in the flow_sources.cpp file and recompile su2.

WilliamH · February 22, 2021, 06:09

Thanks for your answer! I'm afraid I don't have any idea on how to implement that. Do you know how to add those missing terms in that file you mention?
William

bigfootedrockmidget · February 23, 2021, 07:42

Are you asking about the extension of the gust model to 3D or in general how to modify and compile su2? If you are doing simulations with a gust model, you probably know more about that then me. In the literature on gust modeling that you are using you will probably find the complete 3D equations to a gust model an you can check if that matches with what is already implemented in SU2.

And to compile the code yourself, see:
https://su2code.github.io/docs_v7/Bu...2-Linux-MacOS/
https://su2code.github.io/docs_v7/Build-SU2-Windows/

February 20, 2021, 13:59	Gusts in 3D?	#1
WilliamH New Member William Haigh Join Date: Aug 2020 Posts: 20 Rep Power: 6	Hi everyone, I managed to define a gust and solve my flow in 2D but when I tried to apply it to 3D it didn't work. The output tells me: Running simulation with a Wind Gust. WARNING - Wind Gust capability is only verified for 2 dimensional simulations. Error in "virtual CNumerics::ResidualType<> CSourceWindGust::ComputeResidual(const CConfig*)": ------------------------------------------------------------------------- You should only be in the gust source term in two dimensions Is it not possible to apply gusts to a 3D flow? Thanks, William

February 21, 2021, 06:29		#2
bigfootedrockmidget Senior Member bigfoot Join Date: Dec 2011 Location: Netherlands Posts: 679 Rep Power: 21	I just had a look and the gust terms are only implemented for 2D. I do not know anything about gust modeling, but it does not look very complicated to add the 3D terms to the current model. If you know how these terms look in 3D, You could add the missing terms for the z-direction in the flow_sources.cpp file and recompile su2.

February 22, 2021, 06:09		#3
WilliamH New Member William Haigh Join Date: Aug 2020 Posts: 20 Rep Power: 6	Thanks for your answer! I'm afraid I don't have any idea on how to implement that. Do you know how to add those missing terms in that file you mention? William

February 23, 2021, 07:42		#4
bigfootedrockmidget Senior Member bigfoot Join Date: Dec 2011 Location: Netherlands Posts: 679 Rep Power: 21	Are you asking about the extension of the gust model to 3D or in general how to modify and compile su2? If you are doing simulations with a gust model, you probably know more about that then me. In the literature on gust modeling that you are using you will probably find the complete 3D equations to a gust model an you can check if that matches with what is already implemented in SU2. And to compile the code yourself, see: https://su2code.github.io/docs_v7/Bu...2-Linux-MacOS/ https://su2code.github.io/docs_v7/Build-SU2-Windows/